From 97f7a70c01b8995b65cfe69851efa1e95fdb1ab1 Mon Sep 17 00:00:00 2001
From: liym27 <33742067+liym27@users.noreply.github.com>
Date: Mon, 8 Feb 2021 11:07:20 +0800
Subject: [PATCH] Add error message for slice op(#30851)

---
 paddle/fluid/operators/slice_op.cc | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/paddle/fluid/operators/slice_op.cc b/paddle/fluid/operators/slice_op.cc
index b49e026b5e..0a41424cfa 100644
--- a/paddle/fluid/operators/slice_op.cc
+++ b/paddle/fluid/operators/slice_op.cc
@@ -121,6 +121,13 @@ class SliceOp : public framework::OperatorWithKernel {
           start = std::max(start, 0);
           end = std::max(end, 0);
           end = std::min(end, dim_value);
+
+          PADDLE_ENFORCE_LE(start, dim_value,
+                            platform::errors::InvalidArgument(
+                                "start should be less than or equal to the "
+                                "dimension value, but received "
+                                "start = %d, shape[%d] = %d.",
+                                starts[i], axes[i], out_dims[axes[i]]));
           PADDLE_ENFORCE_GT(end, start,
                             platform::errors::InvalidArgument(
                                 "end should greater than start, but received "
-- 
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